[SOLVED] Static IP help

[lemmy999]

I am trying to setup a small network at home using NFS. I know that I need static IP's on all my machines.

I have the following settings- router reports that it currently assigns 192.168.1.66 to my PC. Routers IP is 192.168.1.254 ( I think). Using System>Admin>networking I have set up a static IP using those values. However after confirming changes I cannot access the internet. What simple mistake am I making here?

[rolnics]

I've just done a quick search on the forums and can't find anything else that can help, but I did find a howto elsewhere.

Take a look at this Static IP HOWto, I'm not sure if it will help, but it's a start.

[dacorr]

could you tupe ifconfig in terminal and post results?

dac

[lemmy999]

This is my ifconfig ( but i have changed back to DHCP)

eth0 Link encap:Ethernet HWaddr 00:14:2a:ec:d3:b0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16 Base address:0xe000

eth1 Link encap:Ethernet HWaddr 00:50:bf:80:2b:a4
inet addr:192.168.1.66 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::250:bfff:fe80:2ba4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18040 errors:0 dropped:0 overruns:0 frame:0
TX packets:15008 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15630675 (14.9 MB) TX bytes:3175393 (3.0 MB)
Interrupt:20 Base address:0xe900

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1684 errors:0 dropped:0 overruns:0 frame:0
TX packets:1684 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:74383 (72.6 KB) TX bytes:74383 (72.6 KB)

Just checked /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth2
#iface eth2 inet dhcp

auto ath0
#iface ath0 inet dhcp

auto wlan0
#iface wlan0 inet dhcp

Where does eth2 come from?

[wizard10000]

I am trying to setup a small network at home using NFS. I know that I need static IP's on all my machines.

I have the following settings- router reports that it currently assigns 192.168.1.66 to my PC. Routers IP is 192.168.1.254 ( I think). Using System>Admin>networking I have set up a static IP using those values. However after confirming changes I cannot access the internet. What simple mistake am I making here?

Let's think about this a little differently. Rather than hardcoding an IP address on a workstation what about using a MAC reservation on the router? On my work network (and on my home network) all workstation static IPs are assigned by the DHCP server, not reserved on the workstation. The reason for this is that creating nonstandard configurations increases support costs

So if you wanted your router to assign 192.168.1.66 to your PC all the time all you have to do is tell the router that that address is reserved for MAC address 00:14:2a:ec:d3:b0.

At home I have two Linux boxes, one networked printer and the spousal unit's Windows machine all happily receiving static IP addresses from the router instead of hardcoding them on the local device. NFS shares between the Linux boxes and Windows shares through samba work just fine.

[lisati]

Let's think about this a little differently. Rather than hardcoding an IP address on a workstation what about using a MAC reservation on the router? On my work network (and on my home network) all workstation static IPs are assigned by the DHCP server, not reserved on the workstation. The reason for this is that creating nonstandard configurations increases support costs

So if you wanted your router to assign 192.168.1.66 to your PC all the time all you have to do is tell the router that that address is reserved for MAC address 00:14:2a:ec:d3:b0.

At home I have two Linux boxes, one networked printer and the spousal unit's Windows machine all happily receiving static IP addresses from the router instead of hardcoding them on the local device. NFS shares between the Linux boxes and Windows shares through samba work just fine.

Sounds good....I use address reservation based on MAC address as well, one for my desktop's wireless, another for my laptop's wireless, and another for the same laptop when it's plugged in to a wired port (saves having to remember to disable wireless on it)


<aside>I've just noticed I've started to unconsciously capitalise the word Desktop, corrected in above rant</aside>

[lemmy999]

@wizard1000

Sounds like a good idea. I'll give that a go instead!

[lemmy999]

Don't I need static IP addresses to make NFS work?

[wizard10000]

Don't I need static IP addresses to make NFS work?

NFS doesn't care what the IP address is or how the workstation got it but if the IP address changes it'll break your connection. You can do name-based NFS but something has to keep track of hostname to IP address changes - IMO static IPs are the way to go.

[rolnics]

what about using a MAC reservation on the router?

That's a brilliant answer wizard10000! I will have to keep that answer, as that might be of use to me in the near future!